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Question-1. What is Hy?
Answer-1: Hy is a Lisp-like dialect that compiles to Python?s abstract syntax tree (AST) and runs on the Python interpreter.
Question-2. Who developed Hy?
Answer-2: Paul Tagliamonte initially developed Hy as a Lisp-based language for Python.
Question-3. How do you install Hy?
Answer-3: Using pip install hy.
Question-4. How do you start the Hy REPL?
Answer-4: Running hy in the terminal.
Question-5. How do you execute a Hy script?
Answer-5: Using hy script.hy.
Question-6. What is the file extension for Hy scripts?
Answer-6: .hy
Question-7. How do you print a message in Hy?
Answer-7: Using (print "Hello, World!").
Question-8. How do you define a variable in Hy?
Answer-8: Using (setv x 10).
Question-9. How do you perform arithmetic operations in Hy?
Answer-9: Using Lisp-like syntax, e.g., (+ 2 3), (* 4 5).
Question-10. How do you define a function in Hy?
Answer-10: Using (defn func-name [args] (body)).
Question-11. How do you call a function in Hy?
Answer-11: Using (func-name arguments).
Question-12. How do you define a lambda function in Hy?
Answer-12: Using (fn [args] (body)).
Question-13. How do you write an if statement in Hy?
Answer-13: Using (if condition true-expr false-expr).
Question-14. How do you write a for loop in Hy?
Answer-14: Using (for [var iterable] (body)).
Question-15. How do you write a while loop in Hy?
Answer-15: Using (while condition (body)).
Question-16. How do you import a Python module in Hy?
Answer-16: Using (import module-name).
Question-17. How do you access Python functions in Hy?
Answer-17: Using (module-name.function-name arguments).
Question-18. How do you use list comprehensions in Hy?
Answer-18: Using (listcomp expression (for [var iterable])).
Question-19. How do you define a class in Hy?
Answer-19: Using (defclass ClassName [] (defn __init__ [self] (body))).
Question-20. How do you inherit a class in Hy?
Answer-20: Using (defclass ChildClass [ParentClass] (body)).
Question-21. How do you create a dictionary in Hy?
Answer-21: Using { :key1 "value1" :key2 "value2" }.
Question-22. How do you create a list in Hy?
Answer-22: Using [], e.g., [1 2 3].
Question-23. How do you create a tuple in Hy?
Answer-23: Using #(1 2 3).
Question-24. How do you access a list element in Hy?
Answer-24: Using (get list index).
Question-25. How do you check the length of a list in Hy?
Answer-25: Using (len list).
Question-26. How do you iterate over a list in Hy?
Answer-26: Using (for [item list] (print item)).
Question-27. How do you concatenate lists in Hy?
Answer-27: Using (+ list1 list2).
Question-28. How do you create a set in Hy?
Answer-28: Using #{1 2 3}.
Question-29. How do you check if an element is in a list?
Answer-29: Using (in element list).
Question-30. How do you remove an item from a list?
Answer-30: Using (del list index).
Question-31. How do you define a generator in Hy?
Answer-31: Using (yield value).
Question-32. How do you create a decorator in Hy?
Answer-32: Using (defn my-decorator [func] (fn [*args **kwargs] (do (print "Before") (func *args **kwargs)))).
Question-33. How do you catch exceptions in Hy?
Answer-33: Using (try (body) (except [Exception] (handler))).
Question-34. How do you raise an exception in Hy?
Answer-34: Using (raise (Exception "Error message")).
Question-35. How do you check the type of a variable in Hy?
Answer-35: Using (type var).
Question-36. How do you convert a string to an integer in Hy?
Answer-36: Using (int "10").
Question-37. How do you convert an integer to a string in Hy?
Answer-37: Using (str 10).
Question-38. How do you open a file in Hy?
Answer-38: Using (setv f (open "file.txt" "r")).
Question-39. How do you read a file in Hy?
Answer-39: Using (.read f).
Question-40. How do you write to a file in Hy?
Answer-40: Using (.write f "Hello").
Question-41. How do you close a file in Hy?
Answer-41: Using (.close f).
Question-42. How do you check if a file exists in Hy?
Answer-42: Using (import os) (os.path.exists "file.txt").
Question-43. How do you execute a shell command in Hy?
Answer-43: Using (import subprocess) (subprocess.call ["ls"]).
Question-44. How do you get user input in Hy?
Answer-44: Using (input "Enter something: ").
Question-45. How do you check for equality in Hy?
Answer-45: Using (= a b).
Question-46. How do you check if a number is greater than another?
Answer-46: Using (> a b).
Question-47. How do you check if two conditions are true in Hy?
Answer-47: Using (and condition1 condition2).
Question-48. How do you format strings in Hy?
Answer-48: Using (format "Hello, {}" name).
Question-49. How do you exit a program in Hy?
Answer-49: Using (import sys) (sys.exit).
Question-50. What are macros in Hy?
Answer-50: Macros allow metaprogramming by transforming code before evaluation, defined using (defmacro name [args] (body)).
Frequently Asked Question and Answer on Hy (Lisp-like for Python)
Hy (Lisp-like for Python) Interview Questions and Answers in PDF form Online
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